Seal Kits Description
This Seal Kits is indexed for Kato HD550 Arm Cylinder Seal Kit. Compare reference number pilotpart328411 against the label on your existing Kato component before ordering.
Before checkout, compare OEM part number pilotpart328411, connector layout, mounting position, and machine serial number. For high-value or fitment-sensitive parts, submit the fitment form below so support can verify the match.




